Home / 21,598.57-29,806.63-12,646.45

Finding the Fourth Proportional to 21,598.57, 29,806.63 and 12,646.45

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Solution

The fourth proportional to 21,598.57, 29,806.63 and 12,646.45 is: 17,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.57 : 29,806.63 = 12,646.45 : x
  2. Step 2: Convert to fraction form
    21,598.57/29,806.63 = 12,646.45/x
  3. Step 3: Cross multiply
    21,598.57x = 29,806.63 × 12,646.45
  4. Step 4: Simplify right side
    21,598.57x = 376,948,055.96
  5. Step 5: Solve for x
    x = 376,948,055.96/21,598.57
  6. Step 6: Final answer
    x = 17,452.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.